Need advice: Cleaned my car's IAC valve. Now it's acting weird.
03-31-2007, 03:23 PM
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Need advice: Cleaned my car's IAC valve. Now it's acting weird. Recently, I was having a somewhat irregualr idle on my 1998 Pontiac Trans Am. After speaking to a number of people, I was advised to remove and clean my car's IAC valve. I did this. While I was in the process, I removed the throttle completely and cleaned that out.
I reinstalled everything, and started my car. The idle seemed to be somewhat smoother. However, I noted that my "Service Engine Soon" light was now on. Also, when starting from a stop, my 1st gear to second gear shift (I have an automatic) is somewhat quick/harsh. Its hard to describe it, but, it felt like I was jerking/yanking from first to second. Other than that, I noted no problems.
Does anyone have any opinions about the problem?
I reinstalled everything, and started my car. The idle seemed to be somewhat smoother. However, I noted that my "Service Engine Soon" light was now on. Also, when starting from a stop, my 1st gear to second gear shift (I have an automatic) is somewhat quick/harsh. Its hard to describe it, but, it felt like I was jerking/yanking from first to second. Other than that, I noted no problems.
Does anyone have any opinions about the problem?
03-31-2007, 04:58 PM
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I intend to get it checked. Until then, I'm looking for any opinions.
I read that my car would have to relearn idle, and I read the procedure (from a GM service manual that I have). When I shift from Park to Drive, it just makes a weird almost banigng sound. Needless to say, I just shut the car off.
Does anyone know how a TB cleaning, as well as an IAC valve cleaning would have an effect on how my car shifts?
I read that my car would have to relearn idle, and I read the procedure (from a GM service manual that I have). When I shift from Park to Drive, it just makes a weird almost banigng sound. Needless to say, I just shut the car off.
Does anyone know how a TB cleaning, as well as an IAC valve cleaning would have an effect on how my car shifts?
03-31-2007, 05:29 PM
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You can clean an iac to the point of breaking it
Yours might just be bad. They're cheap, maybe just pick up a new one at Autozone and get them to check the code for free while you're there.
Yours might just be bad. They're cheap, maybe just pick up a new one at Autozone and get them to check the code for free while you're there.
03-31-2007, 06:16 PM
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Tainted, I want to thank you for your concern and suggestions. I think I have solved the problem, tho.
I was watching one of the seafoam videos in a different thread, and I randomly and suddenly remebered that I never reinstalled the two sensors that attach to the air box. (I'm not too sure what those sensors are. Any ideas?)
Anyway, I went out, attached them. I still had the error message when I turned my car on, but, after completeing the re-learn cycle, the SES message went away.
Hopefully, there are no other problems.
I was watching one of the seafoam videos in a different thread, and I randomly and suddenly remebered that I never reinstalled the two sensors that attach to the air box. (I'm not too sure what those sensors are. Any ideas?)
Anyway, I went out, attached them. I still had the error message when I turned my car on, but, after completeing the re-learn cycle, the SES message went away.
Hopefully, there are no other problems.
